Regulations last checked for updates: Feb 12, 2026

Title 43 - Public Lands: Interior last revised: Dec 18, 2025
§ 3251.10 - Do I need a permit before I start exploration operations?

BLM must approve a Notice of Intent to Conduct Geothermal Resource Exploration Operations (NOI) before you conduct exploration operations. The approved NOI, including any necessary conditions for approval, constitutes your permit.

source: 72 FR 24400, May 2, 2007, unless otherwise noted.
cite as: 43 CFR 3251.10